Question

Fill in the blanks :

Supplement of ……………………….. is $45°$.

Answer 1

Supplementary angles :

Two angles are said to be supplementary angles if they add up to $180°$.

Let the supplement of $x°$ is $45°$.

So, $x°+45°=180°$ ($\because$Supplementary angles add up to $180°$)

$x°=180°-45°$ (By transposing $45°$from L.H.S. to R.H.S.)

$x°=135°$

Hence supplement of $135°$ is $45°$.